@kevn I've experienced any number of sound stages over the decades, this both from my own systems and others. It's been a long term migration towards SET and horns, simply my preference at this time, could change somewhat as I continue to experiment with different amps.
One should always be mindful that preamps, sources, rooms also greatly affect presentations. My DHT, fully balanced, transformer volume control pre changed things to a large degree vs 6sn7 and 12 series tube based pre's I previously used. More recently had a Pass XP-22 pre, this made for yet another presentation. And then we have footers, racks, etc, we can alter presentation to some extent here. And then we have subs, adding a pair couple years ago, opened up sound stage to an amazing degree.

